Jennifer Garner’s latest movie, “Tribes of Palos Verdes,” will see the actress explore a new persona. The movie is about two daughters who escape their mom (Garner), who’s having a nervous breakdown.

The movie is one of a number of projects on the roster for Robbie Brenner, the former Relativity Media head of film, now working with The Firm. “She [Jennifer] just finished a religious movie [“Miracles from Heaven”], and now she’s the worst mother of the year. It is an amazing shift in gears for her,” Brenner told On The Money.

Brenner adds that Garner made everyone on the set laugh by pretending to unleash a rant while she stood at the ready, and staff fiddled with lighting. “In one scene where she was in character, the crew was stumbling around and she said, ‘We’ve slated, OK? Ready to go?’ ”

The flick is being sold at the Cannes Film Festival, which kicks off May 11. A release date is yet to be determined.

Brenner exited Relativity just seven months ago, and she now has four projects on the go. She’s currently casting for the role of Winston Churchill for a World War II movie, “The Paladin,” Brenner told On the Money.

When asked about her experience at Relativity, Brenner says: “ I love [CEO] Ryan [Kavanaugh]. It was an amazing journey and experience, and I wish him the best, but it’s nice to do the things I want to do.”